Results 111 to 120 of about 604,375 (292)

The faintest radio source yet: EVLA observations of the gravitational lens SDSS J1004+4112

, 2011
We present new radio observations of the large-separation gravitationally-lensed quasar SDSS J1004+4112, taken in a total of 6 hours of observations with the Extended Very Large Array (EVLA). The maps reach a thermal noise level of approximately 7microJy.
Baars, Barvainis, Blundell, Bullock, Chiba, Chiba, Cohn, Dalal, Fadely, Faure, Fohlmeister, Fohlmeister, Inada, Jackson, Kawano, Klypin, Kochanek, Kochanek, Koopmans, Kratzer, Mao, Metcalf, Moore, Oguri, Oguri, Ota, Refsdal, Saha, Schechter, Schinnerer, Schneider, Sharon, White, Williams   +33 more
core   +1 more source

A Systematic Comparison of Alpha‐Synuclein Seed Amplification Assays for Increasing Reproducibility

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Seed amplification assays (SAAs) enable ultrasensitive detection of misfolded α‐synuclein across biofluids and tissues. Yet, heterogeneity in protocols limits cross‐study comparability and clinical translation. Here, we review α‐synuclein SAA methods and their performance across various biological matrices.
Manuela Amaral‐do‐Nascimento, Daniela F. Santos, Tuane C. R. G. Vieira, Tiago F. Outeiro   +3 more
wiley   +1 more source

Radio map estimation using a CycleGAN-based learning framework for 6G wireless communication

Digital Communications and Networks
As the 6G era approaches, wireless communication faces challenges such as massive user numbers, high mobility, and spectrum resource sharing. Radio maps are crucial for network design, optimization, and management, providing essential channel information.
Yilin Ma, Chiya Zhang, Chunlong He, Xingquan Li   +3 more
doaj   +1 more source

A decametric wavelength radio telescope for interplanetary scintillation observations [PDF]

A phased array, electrically steerable radio telescope (with a total collecting area of 18 acres), constructed for the purpose of remotely sensing electron density irregularity structure in the solar wind, is presented.
Cronyn, W. M., Shawhan, S. D.
core   +1 more source

Kriging radio environment map construction

, 2022
With the massive increase in usage of some parts of the electromagnetic spectrum during the last decades, the ability to create real time maps of signal coverage is now more important than ever before. This Masters project is designed to test two different methods of generating such maps with a one second limit to processing time.
openaire   +1 more source

Does Long‐Term Lower Extremity Strength Training in Adults With Knee Osteoarthritis and Varus Alignment Reduce Knee Joint Loading During Gait?

Arthritis Care &Research, EarlyView.
Objective We examined whether 18 months of strength training in individuals with knee varus alignment and medial tibiofemoral osteoarthritis (OA) reduced knee joint loads during walking compared to an attention control group. Methods This study was a secondary analysis of a randomized clinical trial that compared the effects of strength training to a ...
Stephen P. Messier, Matthew N. Vigliotti, Paige E. Rice, Brian Pietrosimone, Shannon L. Mihalko, Edward H. Ip, Richard F. Loeser, David J. Hunter, Ali Guermazi, Ryan Hill, Santiago Saldana, Kim L. Bennell, Paul DeVita   +12 more
wiley   +1 more source

Imaging on PAPER: Centaurus A at 148 MHz

, 2013
We present observations taken with the Precision Array for Probing the Epoch of Reionization (PAPER) of the Centaurus A field in the frequency range 114 to 188 MHz. The resulting image has a 25' resolution, a dynamic range of 3500 and an r.m.s. of 0.5 Jy\
Aguirre, James E., Ali, Zaki, Bradley, Richard F., Carilli, Chris L., DeBoer, Dave, Dexter, Matthew, Green, David A., Gugliucci, Nicole E., Harris, D. E., Jacobs, Daniel C., Klima, Pat, MacMahon, Dave, Manley, Jason, Moore, David F., Parsons, Aaron R., Pober, Jonathan C., Stefan, Irina I., Walbrugh, William P.   +17 more
core   +1 more source

Real-time Localization Using Radio Maps

, 2020
This paper deals with the problem of localization in a cellular network in a dense urban scenario. Global Navigation Satellite System typically performs poorly in urban environments when there is no line-of-sight between the devices and the satellites, and thus alternative localization methods are often required.
Yapar, Çağkan, Levie, Ron, Kutyniok, Gitta, Caire, Giuseppe   +3 more
openaire   +2 more sources

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source

Continuum Halos in Nearby Galaxies -- an EVLA Survey (CHANG-ES) -- I: Introduction to the Survey

, 2012
We introduce a new survey to map the radio continuum halos of a sample of 35 edge-on spiral galaxies at 1.5 GHz and 6 GHz in all polarization products. The survey is exploiting the new wide bandwidth capabilities of the Karl G. Jansky Very Large Array (i.
A. W. Strong, Abdo, Allen, Arpad Miskolczi, Azimlu, Baugh, Benjamin, Bregman, Breitschwerdt, Briggs, Calzetti, Chakraborti, Chaves, Condon, Condon, D. J. Saikia, Dale, Dumke, Duric, E. J. Murphy, Ekers, Everett, Everett, Ferrarese, Fraternali, Gebhardt, George Heald, Gissinger, Hanasz, Heald, Howk, Hummel, Hummel, Hummel, Irwin, Irwin, Jayanne English, Jiang-Tao Li, Judith Irwin, Kennicutt, Krause, Krause, Krause, Kronberg, Li, Li, Mac Low, Mao, Marita Krause, Martin, Martos, Megan Johnson, Moskalenko, Moskalenko, Moustakas, Murphy, Murphy, Murphy, Oosterloo, Philip Schmidt, Pohl, Porter, Q. Daniel Wang, R. A. Benjamin, Rainer Beck, Ralf-Jürgen Dettmar, Rand, Rene Walterbos, Richard J. Rand, Richard N. Henriksen, Rossa, Sanders, Satyapal, Schaap, Silvia Carolina Mora, Solanes, Strickland, Strong, Strong, Strong, Strong, Swaters, Tabatabaei, Theresa Wiegert, Tom Oosterloo, Troy A. Porter, Tully, Tüllmann, Wang, Zimmer   +89 more
core   +1 more source